Compounding-injection moulding combined process and device
CA 2086823 C · Owner: Intrafico Intercontinental Trade & Finance Co. Establ. · Inventors: Putsch, Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process is disclosed for recycling plastic materials. The previously sorted plastic; material, wastes are comminuted mixed, melted and homogenized during a first step and , the raw, materials thus recovered are immediately stocked in a storage chamber (12) or buffer, reservoir, then supplied to an injection and moulding device (13). During their temporary, storage, the raw materials are exposed if necessary to a regulated temperature.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed July 8, 1991 and granted November 11, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 8, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 8, 2013.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.